vendor/llvm/llvm-release_38-r261369

2 files changed, 57 insertions, 8 deletions

diff --git a/docs/CMake.rst b/docs/CMake.rst
index 9ec6b0a2416ee..4e5feae99931a 100644
--- a/docs/CMake.rst
+++ b/docs/CMake.rst
@@ -197,12 +197,6 @@ CMake manual, or execute ``cmake --help-variable VARIABLE_NAME``.
 **CMAKE_CXX_FLAGS**:STRING
   Extra flags to use when compiling C++ source files.
 
-**BUILD_SHARED_LIBS**:BOOL
-  Flag indicating if shared libraries will be built. Its default value is
-  OFF. This option is only recommended for use by LLVM developers.
-  On Windows, shared libraries may be used when building with MinGW, including
-  mingw-w64, but not when building with the Microsoft toolchain.
-
 .. _LLVM-specific variables:
 
 LLVM-specific variables
@@ -445,6 +439,30 @@ LLVM-specific variables
   $CMAKE_INSTALL_PREFIX/Toolchains containing an xctoolchain directory which can
   be used to override the default system tools. 
 
+**LLVM_BUILD_LLVM_DYLIB**:BOOL
+  If enabled, the target for building the libLLVM shared library is added.
+  This library contains all of LLVM's components in a single shared library.
+  Defaults to OFF. This cannot be used in conjunction with BUILD_SHARED_LIBS.
+  Tools will only be linked to the libLLVM shared library if LLVM_LINK_LLVM_DYLIB
+  is also ON.
+  The components in the library can be customised by setting LLVM_DYLIB_COMPONENTS
+  to a list of the desired components.
+
+**LLVM_LINK_LLVM_DYLIB**:BOOL
+  If enabled, tools will be linked with the libLLVM shared library. Defaults
+  to OFF. Setting LLVM_LINK_LLVM_DYLIB to ON also sets LLVM_BUILD_LLVM_DYLIB
+  to ON.
+
+**BUILD_SHARED_LIBS**:BOOL
+  Flag indicating if each LLVM component (e.g. Support) is built as a shared
+  library (ON) or as a static library (OFF). Its default value is OFF. On
+  Windows, shared libraries may be used when building with MinGW, including
+  mingw-w64, but not when building with the Microsoft toolchain.
+ 
+  .. note:: BUILD_SHARED_LIBS is only recommended for use by LLVM developers.
+            If you want to build LLVM as a shared library, you should use the
+            ``LLVM_BUILD_LLVM_DYLIB`` option.
+
 Executing the test suite
 ========================
 
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index 7b284d59656ba..73831f545390e 100644
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -89,6 +89,30 @@ Non-comprehensive list of changes in this release
   the node ``N`` is guaranteed not to be the last in the list, it is safe to
   call ``&*++N->getIterator()`` directly.
 
+* The `Kaleidoscope tutorials <tutorial/index.html>`_ have been updated to use
+  the ORC JIT APIs.
+
+* ORC now has a basic set of C bindings.
+
+* Optional support for linking clang and the LLVM tools with a single libLLVM
+  shared library. To enable this, pass ``-DLLVM_LINK_LLVM_DYLIB=ON`` to CMake.
+  See `Building LLVM with CMake`_ for more details.
+
+* The optimization to move the prologue and epilogue of functions in colder
+  code path (shrink-wrapping) is now enabled by default.
+
+* A new target-independent gcc-compatible emulated Thread Local Storage mode
+  is added.  When ``-femultated-tls`` flag is used, all accesses to TLS
+  variables are converted to calls to ``__emutls_get_address`` in the runtime
+  library.
+
+* MSVC compatible exception handling has been completely overhauled. New
+  instructions have been introduced to facilitate this:
+  `New exception handling instructions <ExceptionHandling.html#new-exception-handling-instructions>`_. 
+  While we have done our best to test this feature thoroughly, it would
+  not be completely surprising if there were a few lingering issues that
+  early adopters might bump into.
+
 .. NOTE
    For small 1-3 sentence descriptions, just add an entry at the end of
    this list. If your description won't fit comfortably in one bullet
@@ -115,7 +139,7 @@ Changes to the ARM Backends
 During this release the AArch64 target has:
 
 * Added support for more sanitizers (MSAN, TSAN) and made them compatible with
-  all VMA kernel configurations (kurrently tested on 39 and 42 bits).
+  all VMA kernel configurations (currently tested on 39 and 42 bits).
 * Gained initial LLD support in the new ELF back-end
 * Extended the Load/Store optimiser and cleaned up some of the bad decisions
   made earlier.
@@ -218,9 +242,16 @@ Changes to the X86 Target
 * More efficient code for wide integer compares. (E.g. 64-bit compares
   on 32-bit targets.)
 
-* Tail call support for ``thiscall``, ``stdcall`, ``vectorcall``, and
+* Tail call support for ``thiscall``, ``stdcall``, ``vectorcall``, and
   ``fastcall`` functions.
 
+Changes to the Hexagon Target
+-----------------------------
+
+In addition to general code size and performance improvements, Hexagon target
+now has basic support for Hexagon V60 architecture and Hexagon Vector
+Extensions (HVX).
+
 Changes to the AVR Target
 -------------------------